US 2010/0220400 A1 Example 1 — Nikon
| 17 elements / 13 groups |
| 24-120 mm f/4 FX standard zoom |
| US 2010/0220400 A1 Example 1: f = 24.70 / 45.75 / 116.39 mm |
| 3 aspherical surfaces; 2 inferred ED elements |
| G2 inner focus; G4 decentering VR group |
Inner focus by rigid object-side translation of G2. Nikon's product MFD is 0.45 m; the patent close-range table is a shallow finite-conjugate aberration-characterization state.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | S-TIH53 (OHARA dense flint) |
| L12 | Biconvex Positive | J-PSKH1 (HIKARI; S-FPM2-class ED phosphate crown) |
| L13 | Positive Meniscus | S-LAH97 (OHARA lanthanum crown) |
| L21 | Neg. Meniscus (1× Asph) | S-LAH59 (OHARA lanthanum dense crown) |
| L22 | Negative Meniscus | J-LASF017 (HIKARI lanthanum dense flint) |
| L23 | Biconvex Positive | S-TIH53 (OHARA dense flint) |
| L24 | Biconcave Negative (1× Asph) | S-LAH53 (OHARA lanthanum flint) |
| L31 | Biconvex Positive | S-LAH97 (OHARA lanthanum crown) |
| L32 | Negative Meniscus | S-TIH53 (OHARA dense flint) |
| L33 | Biconvex Positive | FC5 (HOYA) / N-FK5 class fluor-crown |
| L34 | Biconvex Positive | J-PSKH1 (HIKARI; S-FPM2-class ED phosphate crown) |
| L41 | Positive Meniscus | J-LASF021 (HIKARI lanthanum dense flint) |
| L42 | Biconcave Negative | S-LAH97 (OHARA lanthanum crown) |
| L43 | Negative Meniscus | S-LAL8 (OHARA lanthanum crown) |
| L51 | Biconvex Positive (1× Asph) | S-BAL35 (OHARA barium crown) |
| L52 | Positive Meniscus | FC5 (HOYA) / N-FK5 class fluor-crown |
| L53 | Negative Meniscus | J-LASF021 (HIKARI lanthanum dense flint) |
Detailed analysis available in the interactive viewer above.